The AFCT-5805xxxZ transceiver is a high performance, cost-effective module for serial optical data communications applications specified for a data rate of 155 Mb/s. It is designed to provide a SONET/SDH compliant link for intermediate reach links operating at 3.3V or 5.0V input voltage.

The transmitter section of the AFCT-5805xxxZ consists of a 1300 nm FP laser in an eye safe optical subassembly (OSA) which mates to the fiber cable. The laser OSA is driven by a custom IC which converts differential input PECL logic signals, ECL referenced (shifted) to 3.3V or 5V supply, into an analog laser drive current.

The receiver utilizes an InGaAs PIN photodiode mounted together with a transimpedance preamplifier IC in an OSA. This OSA is connected to a circuit providing post amplification quantization, and optical signal detection.